| Message ID | 20230101194034.831222-9-dmitry.baryshkov@linaro.org (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | thermal/drivers/tsens: specify nvmem cells in DT rather than parsing them manually | expand |
On 01/01/2023 19:40, Dmitry Baryshkov wrote: > On msm8939 last (hwid=10) sensor was added in the hw revision 3.0. > Calibration data for it was placed outside of the main calibration data > blob, so it is not accessible by the current blob-parsing code. > > Moreover data for the sensor's p2 is not contiguous in the fuses. This > makes it hard to use nvmem_cell API to parse calibration data in a > generic way. > > Since the sensor doesn't seem to be actually used by the existing > hardware, disable the sensor for now. > > Fixes: 332bc8ebab2c ("thermal: qcom: tsens-v0_1: Add support for MSM8939") > Cc: Bryan O'Donoghue <bryan.odonoghue@linaro.org> > Cc: Shawn Guo <shawn.guo@linaro.org> > Acked-by: Shawn Guo <shawn.guo@linaro.org> > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> > --- > drivers/thermal/qcom/tsens-v0_1.c | 13 ++++--------- > 1 file changed, 4 insertions(+), 9 deletions(-) > > diff --git a/drivers/thermal/qcom/tsens-v0_1.c b/drivers/thermal/qcom/tsens-v0_1.c > index 6645c98ff56c..579028ea48f4 100644 > --- a/drivers/thermal/qcom/tsens-v0_1.c > +++ b/drivers/thermal/qcom/tsens-v0_1.c > @@ -285,7 +285,7 @@ static int calibrate_8939(struct tsens_priv *priv) > u32 p1[10], p2[10]; > int mode = 0; > u32 *qfprom_cdata; > - u32 cdata[6]; > + u32 cdata[4]; > > qfprom_cdata = (u32 *)qfprom_read(priv->dev, "calib"); > if (IS_ERR(qfprom_cdata)) > @@ -296,8 +296,6 @@ static int calibrate_8939(struct tsens_priv *priv) > cdata[1] = qfprom_cdata[13]; > cdata[2] = qfprom_cdata[0]; > cdata[3] = qfprom_cdata[1]; > - cdata[4] = qfprom_cdata[22]; > - cdata[5] = qfprom_cdata[21]; > > mode = (cdata[0] & MSM8939_CAL_SEL_MASK) >> MSM8939_CAL_SEL_SHIFT; > dev_dbg(priv->dev, "calibration mode is %d\n", mode); > @@ -314,8 +312,6 @@ static int calibrate_8939(struct tsens_priv *priv) > p2[6] = (cdata[2] & MSM8939_S6_P2_MASK) >> MSM8939_S6_P2_SHIFT; > p2[7] = (cdata[3] & MSM8939_S7_P2_MASK) >> MSM8939_S7_P2_SHIFT; > p2[8] = (cdata[3] & MSM8939_S8_P2_MASK) >> MSM8939_S8_P2_SHIFT; > - p2[9] = (cdata[4] & MSM8939_S9_P2_MASK_0_4) >> MSM8939_S9_P2_SHIFT_0_4; > - p2[9] |= ((cdata[5] & MSM8939_S9_P2_MASK_5) >> MSM8939_S9_P2_SHIFT_5) << 5; > for (i = 0; i < priv->num_sensors; i++) > p2[i] = (base1 + p2[i]) << 2; > fallthrough; > @@ -331,7 +327,6 @@ static int calibrate_8939(struct tsens_priv *priv) > p1[6] = (cdata[2] & MSM8939_S6_P1_MASK) >> MSM8939_S6_P1_SHIFT; > p1[7] = (cdata[3] & MSM8939_S7_P1_MASK) >> MSM8939_S7_P1_SHIFT; > p1[8] = (cdata[3] & MSM8939_S8_P1_MASK) >> MSM8939_S8_P1_SHIFT; > - p1[9] = (cdata[4] & MSM8939_S9_P1_MASK) >> MSM8939_S9_P1_SHIFT; > for (i = 0; i < priv->num_sensors; i++) > p1[i] = ((base0) + p1[i]) << 2; > break; > @@ -544,7 +539,7 @@ static int __init init_8939(struct tsens_priv *priv) { > priv->sensor[6].slope = 2833; > priv->sensor[7].slope = 2838; > priv->sensor[8].slope = 2840; > - priv->sensor[9].slope = 2852; > + /* priv->sensor[9].slope = 2852; */ > > return init_common(priv); > } > @@ -620,9 +615,9 @@ static const struct tsens_ops ops_8939 = { > }; > > struct tsens_plat_data data_8939 = { > - .num_sensors = 10, > + .num_sensors = 9, > .ops = &ops_8939, > - .hw_ids = (unsigned int []){ 0, 1, 2, 3, 5, 6, 7, 8, 9, 10 }, > + .hw_ids = (unsigned int []){ 0, 1, 2, 3, 5, 6, 7, 8, 9, /* 10 */ }, > > .feat = &tsens_v0_1_feat, > .fields = tsens_v0_1_regfields, Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
diff --git a/drivers/thermal/qcom/tsens-v0_1.c b/drivers/thermal/qcom/tsens-v0_1.c index 6645c98ff56c..579028ea48f4 100644 --- a/drivers/thermal/qcom/tsens-v0_1.c +++ b/drivers/thermal/qcom/tsens-v0_1.c @@ -285,7 +285,7 @@ static int calibrate_8939(struct tsens_priv *priv) u32 p1[10], p2[10]; int mode = 0; u32 *qfprom_cdata; - u32 cdata[6]; + u32 cdata[4]; qfprom_cdata = (u32 *)qfprom_read(priv->dev, "calib"); if (IS_ERR(qfprom_cdata)) @@ -296,8 +296,6 @@ static int calibrate_8939(struct tsens_priv *priv) cdata[1] = qfprom_cdata[13]; cdata[2] = qfprom_cdata[0]; cdata[3] = qfprom_cdata[1]; - cdata[4] = qfprom_cdata[22]; - cdata[5] = qfprom_cdata[21]; mode = (cdata[0] & MSM8939_CAL_SEL_MASK) >> MSM8939_CAL_SEL_SHIFT; dev_dbg(priv->dev, "calibration mode is %d\n", mode); @@ -314,8 +312,6 @@ static int calibrate_8939(struct tsens_priv *priv) p2[6] = (cdata[2] & MSM8939_S6_P2_MASK) >> MSM8939_S6_P2_SHIFT; p2[7] = (cdata[3] & MSM8939_S7_P2_MASK) >> MSM8939_S7_P2_SHIFT; p2[8] = (cdata[3] & MSM8939_S8_P2_MASK) >> MSM8939_S8_P2_SHIFT; - p2[9] = (cdata[4] & MSM8939_S9_P2_MASK_0_4) >> MSM8939_S9_P2_SHIFT_0_4; - p2[9] |= ((cdata[5] & MSM8939_S9_P2_MASK_5) >> MSM8939_S9_P2_SHIFT_5) << 5; for (i = 0; i < priv->num_sensors; i++) p2[i] = (base1 + p2[i]) << 2; fallthrough; @@ -331,7 +327,6 @@ static int calibrate_8939(struct tsens_priv *priv) p1[6] = (cdata[2] & MSM8939_S6_P1_MASK) >> MSM8939_S6_P1_SHIFT; p1[7] = (cdata[3] & MSM8939_S7_P1_MASK) >> MSM8939_S7_P1_SHIFT; p1[8] = (cdata[3] & MSM8939_S8_P1_MASK) >> MSM8939_S8_P1_SHIFT; - p1[9] = (cdata[4] & MSM8939_S9_P1_MASK) >> MSM8939_S9_P1_SHIFT; for (i = 0; i < priv->num_sensors; i++) p1[i] = ((base0) + p1[i]) << 2; break; @@ -544,7 +539,7 @@ static int __init init_8939(struct tsens_priv *priv) { priv->sensor[6].slope = 2833; priv->sensor[7].slope = 2838; priv->sensor[8].slope = 2840; - priv->sensor[9].slope = 2852; + /* priv->sensor[9].slope = 2852; */ return init_common(priv); } @@ -620,9 +615,9 @@ static const struct tsens_ops ops_8939 = { }; struct tsens_plat_data data_8939 = { - .num_sensors = 10, + .num_sensors = 9, .ops = &ops_8939, - .hw_ids = (unsigned int []){ 0, 1, 2, 3, 5, 6, 7, 8, 9, 10 }, + .hw_ids = (unsigned int []){ 0, 1, 2, 3, 5, 6, 7, 8, 9, /* 10 */ }, .feat = &tsens_v0_1_feat, .fields = tsens_v0_1_regfields,
On msm8939 last (hwid=10) sensor was added in the hw revision 3.0. Calibration data for it was placed outside of the main calibration data blob, so it is not accessible by the current blob-parsing code. Moreover data for the sensor's p2 is not contiguous in the fuses. This makes it hard to use nvmem_cell API to parse calibration data in a generic way. Since the sensor doesn't seem to be actually used by the existing hardware, disable the sensor for now. Fixes: 332bc8ebab2c ("thermal: qcom: tsens-v0_1: Add support for MSM8939") Cc: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Cc: Shawn Guo <shawn.guo@linaro.org> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> --- drivers/thermal/qcom/tsens-v0_1.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-)